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Çѱ¹Áö¹Ý°øÇÐȸ / v.23, no.6, 2007³â, pp.103-114
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Á¦ÁÖ ÇØ¾ÈÁö¿ª ¸ð·¡ÀÇ ¾ÐÃà Æ¯¼º
( Compression Characteristics of Jeju Island Beach Sands ) |
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| Á¦ÁÖµµ ÇØ¾ÈÁö¿ª¿¡ ºÐÆ÷Çϰí ÀÖ´Â ¸ð·¡´Â È»ê¾Ï·ù°¡ dzȵǾî Çü¼ºµÈ ¸ð·¡¿Í Á¶°³ µîÀÇ ¾îÆÐ·ù°¡ dzȵǾî ź»ê¿° $(CaCO_3)$ ÇÔÀ¯·®ÀÌ ¸¹Àº ¸ð·¡, ±×¸®°í ÀÌµé µÎ °¡Áö Ư¡ÀÌ È¥ÀçÇÑ ¸ð·¡·Î ºÐ·ùÇÒ ¼ö ÀÖ¾ú´Ù. ºÐ·ùµÈ ¸ð·¡µé Áß »ï¾ç, ±è³ç, Á¦ÁÖ¿ÜÇ× Áö¿ªÀÇ ¸ð·¡¿¡ ¾ÐÃà Æ¯¼ºÀ» ¾Ë°íÀÚ ¾ÐÃà½ÃÇèÀ» ¼öÇàÇÑ °á°ú, »ï¾çÀÎ °æ¿ì Ãʱâ¾ÐÃàÀÌ ´Ù¸¥ ¸ð·¡¿¡ ºñÇØ Å« °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç ±è³ç, Á¦ÁÖ¿ÜÇ× ¸ð·¡ÀÎ °æ¿ì Ãʱâ¾ÐÃà¿ÜÀÇ Ãß°¡ÀûÀÎ ¾ÐÃ൵ »ó´çÈ÷ ¹ß»ýÇÏ¿´À¸¸ç, ÀÌ´Â ¾ÐÃà½ÃÇè Àü¡¤ÈÄÀÇ ¸ð·¡ÀÇ ÀÔµµºÐÆ÷ ºÐ¼® °á°ú ÀÔÀÚÀÇ ÆÄ¼â¿Í Àç¹è¿¿¡ ÀÇÇÑ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ ÇöÀç Á¦ÁÖ¿ÜÇ× Ç׸¸½Ã¼³ ÃàÁ¶°ø»ç¿¡ µû¸¥ Áö¹ÝÀÇ Ä§ÇÏÆ¯¼ºÀ» ºÐ¼®ÇÑ °á°ú Ãʱ⠾ÐÃà ¿Ü¿¡µµ ¸ð·¡ÀÇ ÆÄ¼â¼º°ú Àç¹è¿¿¡ ÀÇÇØ »ó´ç½Ã°£µ¿¾È ¾ÐÃàÀÌ ÀÏ¾î³ °ÍÀ» ¾Ë ¼ö ÀÖÀ¸¸ç, ÆÄ¼â¼º°ú Àç¹è¿ÀÌ °í·ÁµÇÁö ¾ÊÀº ±âÁ¸ ź¼ºÄ§ÇÏ·® »êÁ¤¹ýÀ» ÀÌ¿ëÇÑ Ä§ÇÏ·®°ú ±âÁ¸ÀÇ Ä§ÇϽ𣠻êÁ¤ ½Ã °ú¼ÒÆò°¡ µÉ ¿ì·Á°¡ ÀÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. |
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| Sands distributed in Jeju island's coastal areas, Korea, can be classified as silicate sand derived from volcanic rock, carbonate sand derived from shells, and mixed sands containing both silicate and carbonate sands. These three types of sands typically exist in Jeju coastal areas. Samples of silicate, carbonate and mixed sands were obtained from Samyang beach, Gimnyeong beach, and Jeju harbor area, respectively. Compression tests were conducted to assess the compression characteristics of these sands. As a result of these tests, each sand showed different behaviors. For Samyang beach sand, it appeared that initial compression is a larger than the other two sands. For Cimnyeong and Jeju harbor sands, however, the additional compression occurred after initial compression. This could result from the crushing, shattering, and rearrangement of sand particles. In addition, settlement behavior of Jeju harbor ground according to the construction stages was analyzed using the measured data. It showed that in addition to the initial elastic compression, a considerable additional compression occurred with time. The settlements of Jeju harbor ground were predicted by using the elastic settlement calculation methods (empirical methods) and the compression test method. The empirical methods, which did not consider the crushing, shattering, and rearrangement of particles could show smaller result than that occurring actually. |
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| Ű¿öµå |
| Carbonate sand;Compression;Crushed;Mixed sand;Rearrangement;Settlement;Silicate sand; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.23, no.6, 2007³â, pp.103-114
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200727500255024)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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